Join the Loudoun Wildlife Conservancy as it conducts its ninth annual butterfly count, centered in the Waterford area, at 9 a.m. Saturday. No experience is necessary; novices will be teamed with experienced leaders. Counters will also visit butterfly gardens in an area from White's Ferry in the east to the Appalachian Trail in the west, and from Point of Rocks south to Lincoln. This annual midsummer count, modeled after Christmas Bird Counts, is sponsored by the North American Butterfly Association. For more information, or to register and receive directions, call 540-882-4839 or e-mail email@example.com.
EXHIBIT ENDS TOMORROW
An exhibit of Tucker Hill's black-and-white monotype prints of rural Virginia landscapes at the Waddell Art Gallery ends tomorrow. 9 a.m.-7 p.m. today and tomorrow, Northern Virginia Community College Loudoun Campus, 1000 Harry Byrd Hwy., Sterling. Free. 703-450-2627.
The Boys and Girls Club of Fauquier holds its third annual vehicle show with cars, trucks and motorcycles from 9 a.m. to 3 p.m. Saturday. There will be music by D.C. Motors, 50/50 drawings, refreshments, awards, games, door prizes and vendors. Warrenton Horse Show Grounds, 60 E. Shirley Ave., Warrenton. Registration, 8 a.m. Participants, $10; spectators, $5. 540-349-8890.